Physicist Lionel Barrett is enlisted by an eccentric millionaire, Mr Deutsch, to make an investigation into "survival after death" in "the one place where it has yet to be refuted". This is the Belasco House: the "Mount Everest of haunted houses," originally owned by the notorious "Roaring Giant" Emeric Belasco, a six-foot-five perverted millionaire and supposed murderer, who disappeared following a massacre at his home. The house is believed to be haunted by numerous spirits; the victims of Belasco's twisted desires.